Screw Terminals

A screw terminal is an electrical connector made from plated brass that enables wires to be connected directly to a PCB and consists of a metal frame and a screw. The screw terminal is secured to the PCB using mounting legs which are snapped into holes on the PCB and soldered into place. Pre-stripped wire is wrapped under the head of the screw and the screw is tightened down using a screwdriver making a secure electrical connection between the wire and the metal frame. Wires that are terminated with connectors such as spade or ring terminals are pushed into place over the screw. Screw terminals are available with a right angle or vertical mounting body orientation, different body platings and to suit a wide range of current ratings
Some screw terminals feature colour coded screws for ease of identification and to aid trouble shooting.


Benefits of Screw Terminals


• Simple to use and easy to snap into place. Only basic hand tools required
• Allow high density wire connections to PCB
• Low cost, eliminate the need for a mating connector
• When properly tightened provide an electrically secure connection
• Can be reused in the field allowing for the replacement of wires or equipment
• Can be used with solid, stranded and pre-terminated wire
• Kinked leg versions for extra retention on the PCB


Where are screw terminals used?


PCB screw terminals allow electrical signals and current to flow to and from PCBs and electrical equipment.


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Description Price Orientation Wire Size Current Rating Minimum Wire Size AWG Snap-In Maximum Wire Size AWG Number of Legs Body Material Body Plating Colour Maximum Wire Size Minimum Wire Size
RS Stock No. 176-9967
Mfr. Part No.7466205R
TWD89.00
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 176-9987
Mfr. Part No.7466005R
TWD81.00
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 163-1864
Mfr. Part No.7461097
TWD82.80
Each (In a Box of 200)
units
Vertical - 240A - - - 16 - Tin - - -
RS Stock No. 162-2138
Mfr. Part No.7461070
TWD111.00
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 162-1769
Mfr. Part No.7461129
TWD56.20
Each (In a Box of 250)
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 163-1846
Mfr. Part No.7460719
TWD165.20
Each (In a Box of 100)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 122-5139
Mfr. Part No.7466003R
TWD84.00
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 122-4952
Mfr. Part No.7460307
TWD86.00
Each
units
Vertical - 160A - - - 8 - Tin - - -
RS Stock No. 142-4046
Mfr. Part No.74650094R
TWD149.00
Each
units
Vertical - 85A - - - 8 Brass Tin - - -
New
RS Stock No. 217-5472
Mfr. Part No.5055556-9
TWD108.30
Each (In a Box of 100)
units
Vertical - 37.8A - - - 10 Nylon - - - -
RS Stock No. 122-4976
Mfr. Part No.7461107
TWD534.00
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 162-2108
Mfr. Part No.7460211
TWD254.00
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 176-9860
Mfr. Part No.7466205R
TWD53.20
Each (On a Reel of 500)
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 176-9977
Mfr. Part No.7466105R
TWD114.00
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 163-1871
Mfr. Part No.7461104
TWD231.60
Each (In a Box of 200)
units
Right Angle - 160A - - - 8 - Tin - - -
RS Stock No. 385-499
Mfr. Part No.SCRTM4RA
TWD37.00
Each
units
- - - - - - 4 - - Natural - -
RS Stock No. 178-8753
BrandRS PRO
TWD1.60
Each (In a Bag of 50)
units
Straight 1 x 18 AWG, 3 x 20 → 3 x 16 AWG - 3 x 20AWG - 1 x 18 AWG, 3 x 16AWG - Thermoplastic - Orange - -
RS Stock No. 163-1884
Mfr. Part No.7461383
TWD49.20
Each (In a Box of 250)
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 917-5320
Mfr. Part No.225678
BrandERNI
TWD272.20
Each (In a Pack of 5)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 163-1868
Mfr. Part No.7461101
TWD119.70
Each (In a Box of 350)
units
Right Angle - 100A - - - 6 - Tin - - -